Canadian COVID-19 Antibody and Health Survey


The Canadian COVID-19 Antibody and Health Survey (CCAHS) is a survey designed to help evaluate the extent of the health status associated with the COVID-19 pandemic such as active COVID-19 infections and the prevalence of COVID-19 antibodies among a representative sample of Canadians. The survey also provides a platform to explore emerging public health issues, including the impact of COVID-19 on health and social well-being.

Learn more about the Canadian COVID-19 Antibody and Health Survey


The CCAHS stores dried blood spot and saliva samples from consenting Canadians aged 18 and older. Additional biospecimens from the Canadian Health Measures Survey (CHMS) are available on the CHMS Biobank page.


The CCAHS is enhanced by the national, provincial and territorial representability of its cohort and the possibility of merging the biospecimens’ data with the CCAHS questionnaire content, which includes topics covering respondents’ COVID-19 symptoms and status, risk for acquisition, risk factors, health behavior changes related to COVID-19, health assessments, and more.

For more information for researchers, please consult the Researchers page for the Canadian Health Measures Survey (CHMS)


By consenting to storage of their dried blood and saliva samples for use in future health studies, participants contribute to advances in health care and research. We ensure scientific excellence while protecting the privacy and confidentiality of our respondents.

More info for participants

For more information on your antibody test results, please visit the following website.

Results – Frequently asked questions

If you are feeling stressed because of the CCAHS or the COVID-19 pandemic in general, please visit the following for a list of tips and resources to help with your mental and physical health during these stressful times.

Mental and physical health during the COVID-19 pandemic


Ongoing and recent projects of the biobank

Learn more about our projects

Contact Information

For all inquiries regarding the CCAHS, e-mail:

For all inquiries regarding the Biobank, e-mail:

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